Home / 2,382.20-3,286.38-1,437.45

Finding the Fourth Proportional to 2,382.20, 3,286.38 and 1,437.45

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Solution

The fourth proportional to 2,382.20, 3,286.38 and 1,437.45 is: 1,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.20 : 3,286.38 = 1,437.45 : x
  2. Step 2: Convert to fraction form
    2,382.20/3,286.38 = 1,437.45/x
  3. Step 3: Cross multiply
    2,382.20x = 3,286.38 × 1,437.45
  4. Step 4: Simplify right side
    2,382.20x = 4,724,006.93
  5. Step 5: Solve for x
    x = 4,724,006.93/2,382.20
  6. Step 6: Final answer
    x = 1,983.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.